eufy Security Smart Lock C33, Fingerprint Keyless Door Lock with Handle, Built-in Wi-Fi, APP Remote Control, Biometric Door Knob for Entry Door, Auto Lock, IP53 Waterproof

I’ve been looking for a handle lock like this, and I have a lot of Eufy products that I think work very well. I was looking to replace the Schlage combination handles I’ve had for so long that worked so well, but all of my kids friends know the codes to get into my house. Not that they would use them, but if they shared them, I didn’t feel comfortable and it wasn’t easy to change codes every time that I felt compromised.I was looking for a new handle combination that included fingerprint recognition, and quick code changing options along with temporary codes that would work only once or within a certain time frame and this lock clicked all of the boxes. I have an older home and a dead lock wouldn’t work because the door jams are warped and didn’t always line up correctly for unobstructed engagement unless the door was shut with the same force every time.Anyways, my first concern was with the lack of instructions for door assembly, it took a while for me to look at everything that was delivered for installation and figure out what was needed and what was extra. It’s not hard to install, but they sent extra screws and in my past if you have extra, you missed something.After installation, the app recognized the lock and began showing me the installation process, which I had already completed. You can choose a long code or a short code to unlock the door, 1 digit up to I think 10. Programming the fingerprint is a lot like the old fingerprint programming for iPhones, about 8 different scans, at different angles. New users are easy to set up, and code changes are easy.I’ve used this lock for about a week, fingerprint recognition was a little weak in the beginning but the last three days has been perfect. It learned. It also shows a log of who came in, if they used their code or by fingerprint.My only complaint is there isn’t a way to unlock it for an extended period of time, like if you have guests over for parties or something like that where guests wouldn’t be normally granted access to your home. You can delay the lock, but you can’t unlock it until relock it manually.Eufy, please add this option in future software releases as an option to unlock it, even if it’s for a specific time period.Otherwise, for people in my immediate family, we really like the finger print access this grants, it’s quicker than a code. One note, keep your fingers dry, it doesn’t like wet fingers.

Great value, I bought used like new, and no issues. Opens quick and can be controlled by app. Fingerprint reader is top notch and doesn’t give false reads. Easy to install, just follow the instructions. Looks sleek and keeps my closet secure

The fingerprint sensor is located on the handle, which is a decent and commonly seen design for fingerprint handle locks. However, Eufy's fingerprint module is positioned very deep, rather than being slightly raised. This forces me to press my finger quite hard every time to get it recognized. In daily use, more than half of the time, it fails to recognize my fingerprint on the first attempt, requiring multiple hard presses to succeed. This is a very poor design.Alright, I decided to register fingerprints of my fingertips, thinking it might make recognition easier. But here's the deal-breaker: this product is always offline. When the Wi-Fi is offline, I can't even add new fingerprints. I have three Deco mesh routers at home and many smart home devices and cameras connected to my Wi-Fi network, all of which are very stable. Yet, Eufy's smart lock frequently disconnects. I can't tolerate this and have already initiated the return process. I will never buy a Eufy smart lock again.

Update - 08/17/24Well, after a week long interaction via email and after much troubleshooting, Eufy customer support came through with flying colors and after telling me on 08/15 they will replace the lock, they did! Just got it and the lock works great! Very happy with Eufy! I changed my rating from two stars to five and they earned it! I say buy it if you want it. And I will be buying their other product like the solar camera. Do buy the extended warranty if available.So, this is my second Eufy Smart Lock, the first is the Smart Lock S230 and so far it works. I installed S230 just a week ago from this review and I'm happy with it. However, NOT happy with the C33. The installation was very easy as it fitted right into the door where old Z-WAVE lock was installed. No modifications. The app setup, like S230, was very easy and very quick. Now the not so happy part, the keypad does not work. It will not light up. It will not accept the PIN. The fingerprint on the handle works. But, if I or my family and guest cannot enter their PIN it's just useless. I've opened a service ticket and I'm hoping they can tell me how to fix it and I'm going to give them 72 hours from today. Otherwise, I'm returning it to Amazon. And likely I won't be buy the cameras or door bell. I'll update this review by this weekend.

These work great! Being a machinist and mechanic I was impressed with the quality of the inner workings. Especially for the price. Installation was fairly straight forward. If you have ever replaced a lockset it will be easy. If not, watch some youtube videos. Installation is well within the means of the average or aspiring DIYer. The app is great with plenty of useful features and provides quick phone notification any time the door is locked or unlocked. I would have give 5 stars if not for 1 issue. Once temperature drops to 0 degrees F, the lock no longer functions. It will read and accept your fingerprint or pass code, but the mechanical mechanism does not unlock the door. The manual key still works fine so I would suggest having the key hidden outside somewhere as a backup. Also...the batteries were not 100% new when this was noted, but still showed 90% capacity when tested. I believe it is just a function of the product. I have two of them and the impact of the cold weather was the same for both. Once temperature rose above 5 degrees they both functioned properly.